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Question: From the stem-and-leaf plot, find the mean of the data values.



A ) 74
B ) 76
C ) 75
D ) 77

Steps to derive

1 From the stem-and-leaf plot, the data values are 60, 60, 62, 63, 71, 74, 76, 79, 84, 85, 90 and 96.

2 The mean of the data values is the element which is average of data.

3 So, mean of the data set = 90012= 75



Hence the right answer is Option C

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